MAX1602 Maxim, MAX1602 Datasheet
MAX1602
Manufacturer Part Number
MAX1602
Description
Single-Channel CardBus and PCMCIA VCC/VPP Power-Switching Network
Manufacturer
Maxim
Datasheet
1.MAX1602.pdf
(12 pages)
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The MAX1602 DC power-switching IC contains a net-
work of low-resistance MOSFET switches that deliver
selectable VCC and VPP voltages to a single CardBus
or PC Card host socket. Key features include low-
resistance switches, small packaging, soft-switching
action, and compliance with PCMCIA specifications for
3V/5V switching. 3.3V-only power switching for fast,
32-bit CardBus applications is supported in two ways:
low-resistance 3.3V switches allow high 3.3V load cur-
rents (up to 1A); and completely independent internal
charge pumps let the 3.3V switch operate normally,
even if the +5V and +12V supplies are disconnected or
turned off to conserve power. The internal charge
pumps are regulating types that draw reduced input
current when the VCC switches are static. Power con-
sumption is automatically reduced to 11µA max when
the outputs are high-Z or GND.
Other key features include guaranteed specifications
for output current limit level, and guaranteed specifi-
cations for output rise/fall times (in compliance with
PCMCIA specifications). Reliability is enhanced by
thermal-overload protection, accurate current limiting,
an overcurrent-fault flag output, and undervoltage lock-
outs. The CMOS/TTL-logic interface is flexible, and can
tolerate logic input levels in excess of the positive sup-
ply rail.
The MAX1602 fits a complete CardBus/PCMCIA switch
into a space-saving, 16-pin QSOP package.
________________________Applications
19-1125; Rev 0; 9/96
Pin Configuration appears on last page.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
_______________General Description
______________Ordering Information
MAX1602EEE
Data Loggers
Handy-Terminals
Docking Stations
PCMCIA Read/Write Drives
Single-Channel CardBus and PCMCIA VCC/VPP
PART
________________________________________________________________ Maxim Integrated Products
TEMP. RANGE
-40°C to +85°C
16 QSOP
PIN-PACKAGE
Power-Switching Network
____________________________Features
__________Simplified Block Diagram
Supports a Single PC Card/CardBus Socket
1A, 0.25Ω Max 3.3V VCC Switch
1A, 0.25Ω Max 5V VCC Switch
Soft Switching for Low Inrush Surge Current
Overcurrent Protection
Overcurrent/Thermal-Fault Flag Output
Thermal Shutdown at T
Independent Internal Charge Pumps
Break-Before-Make Switching Action
11µA Max Standby Supply Current
5V and 12V Not Required for Low-R
3.3V Switching
Complies with PCMCIA 3V/5V Switching
Specifications
Super-Small 16-Pin QSOP Package
Code Compatible with:
CONTROL
INPUTS
Cirrus CL-PD67XX Family
Databook DB86184
Intel 82365SL (industry-standard coding)
12IN
GND
VX
VY
VY
MAX1602
SELECT
DECODE
CODE
LOGIC
VDD
j
= +150°C
OVERCURRENT
SHUTDOWN
THERMAL
AND
DS(ON)
VPP
VCC
VCC
VCC
VCC
FAULT
CODE
1
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